This guide has changed significantly since the last Lockdown Guide, as Facebook have introduced a wealth of new features and updates. While most of your privacy settings have not changed, allowing the very vast majority of Facebook users to breathe a sigh of relief, there are a number of new features that you need to be aware of.

To begin, go to the top-right of the page and select Account from the blue bar, then click Privacy settings from the drop-down menu.

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You will immediately, no doubt, notice a massive change. But do not get thrown! It's actually a lot simpler than it was before.

1. If it is not already selected, push the Custom button, and scroll down the page if other settings are not yet visible.

This is the central point for the new privacy settings. Editing your profile is how you access specific permission controls over the content you publish via Facebook, while this screen allows you to enable features which can protect your personal privacy.

1. Click Edit settings to begin editing how you connect with people you know.

This box allows you to control how your accessibility settings on Facebook, such as who can find you.

Remember: if you have created lists of friends, this will allow you to click Custom to specifically accept and deny certain groups of people from seeing certain things.

2. Recommended setting is Everyone, or for the more privacy conscious, Friends of Friends.

3. Recommended setting is Friends of Friends.

4. Recommended setting is Friends.

5. Recommended setting is Friends, or Custom to restrict a limited profile list of friends from seeing your wall posts.

Tags allow photos of you or status messages to include you in them. But, if someone posts a nasty message or picture with you tagged in them, it can lead to embarrassment or even a defriending episode.

2. Click Edit settings to change how you are tagged in content.

Here are the new tagging settings, made available to all Facebook users.

1. Select Edit next to Profile review.

Profile review allows you to manually accept or reject whether a tag is appropriate or not, before they go live on your profile.

2. Select the button marked Turn On Profile Review.

Back to the tagging window, you can now change who can see your posts once you're tagged.

1. Select Edit next to Profile visibility.

Profile visibility allows you to set your custom 'maximum audience' of who can see the content that you are tagged in by yourself and others.

Tag suggestions were met with initial controversy, after Facebook rolled out the facial recognition software without telling Facebook users. However, it is a very useful feature for automatically tagging your friends and your photos in uploaded content.

2. Recommended setting is Enabled. Ensure you follow local laws, as in some regions, this feature may not be entirely lawful (e.g.. Germany).

Back to the tagging window, you can now change your location tagging and Check In settings.

1. Select Edit next to Friends Can Check You Into Places.

Other users of Facebook can breach your privacy by tagging you at a place, using GPS on mobile devices and other means, to reveal your location. While you can remove these tags, it's best not to have them enabled at all.

2. Recommended setting is Disabled.

Back to the tagging window, you can now edit your tag review settings.

1. Select Edit next to Tag review.

Tag Review allows you to check the tags that are added by your friends before they appear on Facebook. Those who are not your friends on Facebook, this will automatically happen whether you have Tag Review enabled or not.

2. Click the Turn On Tag Review button, to enable this feature

Once you are back to the privacy settings page, you can now start reviewing how your applications and third-party websites interact with your Facebook account.

1. Select the Edit settings link next to Apps and websites.

Where you should be: Account > Privacy settings > Apps, games and websites page.

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You should have already reviewed your applications, if you have followed from guide 1 through to this guide. There is one more setting you have the option for, to disable the application platform altogether -- removing all of your applications and settings from your account.

Remember: only use this if you want to disable all applications from your account.

1. Select the Turn off all platform apps link under the Apps you use section.

From here, you can disable certain applications and remove them, or you can turn off the platform altogether -- removing all of your applications from your page.

2. To remove individual applications, select the tick box next to the appropriate application.

3. From here, you can select all applications by clicking the Select all check-box.

4. Following the previous step, to remove all applications, select the Turn off platform button.

Applications not only take some of your data to make them function, but your friends' applications will also take some of your data, too. To prevent this, follow these steps.

1. Select the Edit settings button under the How people bring your info to apps they use heading.

You will see a list of all the check boxes for which data is already flowing out of your profile into your friends' applications. To remove these:

1.Uncheck as many boxes as you wish, to restrict these elements from being used by your friends' applications, then hit Save Changes.

Instant personalisation takes some of your data from Facebook and is added to third-party websites when you visit them. However, there has been a major privacy warning over the use of instant personalisation, and users are advised to disable this.

1. Click the Edit settings button next under the Instant personalisation heading.

Because of the privacy concerns, Facebook will try and explain what instant personalisation is and how it works. You are welcome to watch the video -- or if you know exactly what you want to do:

Instant personalisation passes your 'public data' which is available to everyone, inside and outside Facebook, and takes it to third-party websites, like Pandora and Bing.

1. Recommended setting is to uncheck the box, to turn off instant personalisation.

Where you should be: Account > Privacy settings > Apps, games and websites page.

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Public search indexes your name and public information, which can then be searched for outside of Facebook -- through search engines like Google, or Bing.

1. Click Edit settings under the Public search heading.

Where you should be: Account > Privacy settings > Public search page.

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To keep your data within Facebook, and to restrict it from being handed to third-party search engines, like Google or Bing, which would enable anyone on the web to search for you, it is highly recommended that you disable public search.

1. Uncheck the box to disable public search.

Where you should be: Account > Privacy settings page.

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Another new feature for Facebook users: this feature allows you to limit who can see posts and statuses that you have already put on Facebook in bulk -- saving you from a lot of time, having to go through each post you have made.

It's a very useful setting, but it can not be undone once you have done it. This is only for those who think they may have posts that are publicly available, for everyone on or off Facebook to see.

In a nutshell, this removes the 'Public' permission on all of your past posts, from status updates to uploaded photos, and replaces it with 'Friends' so that only your friends can see those posts, and not everyone whether they have their own Facebook account or not.

Remember: any posts which have friends tagged in them, will be made available to that person's friends, as well.

2. To run this feature, click Limit Old Posts.

Remember: this cannot be undone once you have clicked Confirm.

3. If you are sure you want to go ahead, click the Confirm button.

Once Facebook has changed the permissions on all of your old posts, it will tell confirm that the changes have been made.

4. Click Close to dismiss this box, and return to the privacy settings.

Your block lists allow you to block certain people from seeing you -- to make them 'invisible' to you, and you 'invisible' to them. It also applies to applications, games and invitations to join things. It will be as though these things simply don't exist.

In a nutshell, this removes the 'Public' permission on all of your past posts, from status updates to uploaded photos, and replaces it with 'Friends' so that only your friends can see those posts, and not everyone whether they have their own Facebook account or not.

Remember: any posts which have friends tagged in them, will be made available to that person's friends, as well.